Signal for brooders



2 Sheets-Sheet, l

F. MOCKELMANN SIGNAL FOR BROODERS Filed May 22, 1931 Aug. 15, 1933.

Aug. 1933- F. MOCZKELMANN SIGNAL FOR BROODERS Filed May 1931 2 Sheets-Sheet, 2

lnumler Frank M ockelmann Patented Aug. 15, 1933 i Frank Mockelmann, Millard, Nebr. Application May 22, 1931. Serial No. 539,292

j 4 Claims, (01. 200-440) This invention relates to a signaling device for brooders, and more particularly to a thermostatically operated warning signal therefor.

An object of the invention is to provide signaling means whereby an operator stationed at a distance from the brooder may be apprised of the varying temperature conditions in the brooder, the former being placed at an appreciable distance from the operator. 7

Another object of the invention is to provide warning means in case the brooder ceases to be properly heated, and the operator will at once be Warned of the thermic changes therein, and

will have ample time for resetting the brooder heater governing the temperature of the latter before harm is done the chicks.

A still further object of this invention is to provide signaling means whereby the operator thereof will be warned'in advance should the temperature rise too high; thus eliminating the danger of fire within the brooder, or building in which the brooder is housed.

Other objects and advantages'of this invention will be apparent from the drawings and detailed description thereof:

In the drawings: I Figure -1 is a vertical section of a brooder showing the signaling device as positioned therein and illustrating in a diagrammatic form the connections between the same and an adjacent house where the alarm is to be sounded.

figure 2 is a detail side elevation of the thermostat, showing the electric contacts ofzthe device.

Figure '3 is an end elevation of Figure 2, and

Figure 4 is a horizontal sectiontaken on the lines 44 of Figure 2.

Referring to the drawings, 10 designates a brooder with the usual heater 11. A thermostat 12 rests on an arm '13, connected to one end of,

the stand 14, which has an upright15 at its other end. The stand li has on said first end a down turned leg16 secured to the brooder 10 by a keeper 17. The stand 14 at said opposite end is secured to the upright 15 by akeeper 18, a 'hol1ow bolt 19 extending therethrough and secured by nuts 20. The lower "endZl of the upright 15 is flanged and is adapted to rest on the base of the brooder 10, and securedthereto bya keeper 22, The-lower end of the upright 15 isso constructed as to'fin' noway interfere with the'heat' or'temperature in the brooder 10.

and :is moved by the diaphragm 12 by means of an adjustable s'crew"25. An adjustable movable .tuated, and

'by nuts 48,- insulation being at 49.

base r the'brooder 10 by 130111552.

the bar 23 retaining the weight thereon in any desired position. V I a The thermostat 12 is preferably composed of a double diaphragm and is anchored by a pin 29 to the arm 13 and stand 14. The bolts 3( keep the 'arm 13 rigidly on the Sandra 'The arm 13 has a hook 31 on its-outer end the purpose of which will be explained further on.

The outer end of the arm 23 is provided with movable contacts 33 and 34 which are retained in insulatedrelation by a bolt 35 and nut 36.

The upright 15 still further has an upper outstanding arm 38 securedthereto by' nuts 39 in an insulated manner, insulation shown at 40.

Anadjustable set screw 41 is provided in the .arm 38 andis adapted to contactwith said cont'act33 at given times. i

The arm 38 has a sliding bolt e2" with a limiting nut 43 and isurged downward, by a spring 44 towards the bolt 35. When too sudden a temperature change takes place in the brooder 10, the double diaphragm isgcorrespondingly acif the temperature "fluctuates; but several degrees "the spring 44 prevents the-closing 01 a circuit} permitting a few degrees of fluctuation without giving a warning. An adjustable contact screw 16 is threaded through a-lower bracket lljsecured to the upright 15 In order to obviate the upsetting of the upright 15, side arms are secured thereto, held in this position-by keepers 51 and in turn to the The upright 15 carries midway and crosswise a pin 53 on which a screen 54 is carriedsasin Fig. 1. The inner end of the screen 54 rests on the hook 31. The screen 54: Wards off'chicks fromcoming in contact with the device.

' 5 6 designates the house of the operator, situated at a remote distance from thebrooder 10, and in which meansare employed, signaling meansg such as a red or whiteilight, but prefer ablya buzzer 5'l and a bell58 electrically con- 05 nected by a wire59, the electricity soneeded is obtained frornthe usual house current of 110 yolt current,-or a battery 60 connected at one A metal arm 23 is connected movably at 24,'sidef;to thewire 59 and' having a ground'wi're, 61

which .extends'to the brooder, through the'hol-' trical engagement with the movable contacts 33am 34.

If the temperature within the brooder 10 has risen to too great a degree the thermostat 12 expands, thus causing the arm 23 to be raised by means of the action thus transmitted to the adjustable screw 25, said action causing the insulated head 35 of the bolt to come in contact with the insulated head oi the opposed bolt 42 and spring 44 mounted thereon, and if the temperature rises sufficiently the resistance of the spring 44 is overcome, whence the contact 33 establishes electrical connection with the adjustable screw 41 whereby the circuit is closed through the Wire 62 and to the bell 58, causing the same to sound a warning which indicates the temperature within the brooder' 10 has risen to too high a degree and the stove or lamp 11 needs adjusting. Similarly, if the temperature Within the brooder 10 falls because the stove 1'1 ceases to function, the thermostat 12 contacts and allows the arm 23 to fall or be lowered whereby the contact member 34 will be caused to .form an electrical connection with the. set screw 46 and the contact thusiormed closes the electrical conductor 63 to the buzzer 57,,

actuating thesame and causing the occupant or operator to be informed that the temperature within the brooder has fallen and that the chicks are in danger of freezing.

It will be apparent from the description that the operator is notified at once of thermic changes within the brooder 10, and such thermic changes indicate a rise or lowering of temperature therein. v

The elongated upright 15 is merely for the purpose of protecting the wires or aiding in the carrying ofthe wires upwardly.

In order to adjust the mechanism for the most 'efilcient or selected'results .the operation. a is as follows:

A common thermometeris hung in the broodergin avisible position in order that the temperature may bereadily noted.

Assuming that the temperature reading is '70 degrees the set screw 46 is adjusted upwardly and the set screw 25 is so adjusted that a contact is established between the setscrew 46.. and the electrode 34; whereupon an alarm will sound or signal be perature.

Assuming that the operator desires an alarin or signalto be caused should the temperature arise in the brooder to 160; degrees of heat the mechanism is adjusted as follows:

Sufficient heat is caused to be generated in the brooder until the thermometer reads 100 degrees and at this time the bellows 12 'will greatly expand and the beam orlever 23 in an extreme swung upward position. The operator now fmoves;the screw 41 downward "until its head or lowermost point is slightly higher than ably mounted bolt or bumper post 42.

the lowermostpoint of the resiliently and yield-,

'Fromthe foregoing description it isthoughty obv ous that a signal ior'brooders' constructed 1n accordance with my invention is particularly,

. well adaptedfor use byreason oi the conven ience and ease with which it may be assembled and operated, and it will also be obvious that mv -in'vention is susceptible tosome change and modification. without departing from the principles and spirit thereof, andfor this reason I Q do not wish it to be understood aslimitingmy-i- 'self to the precise arrangement and formation .movement of the lever in eitherered positions. caused atdegrees of tem- "for tensioning the latter vstatic device.

of the several parts herein shown in carrying out my invention claimed. Y

What is claimed is: V v

1.;A circuit closer, comprising a thermostat, a pivoted lever arranged above the thermostat, adjustable supporting means between the lever and the thermostat for supporting the lever from'the thermostat at a predetermined normal position, adjustable means on the lever for in practice except as herein steadying the same, movable contacts. carried 2. A circuit closer, comprising a pivoted lever,

a thermostat, adjustable means between the lever and the thermostat for moving the lever upon the operation of the thermostat, opposed -movable contacts carried by the lever, opposed fixed contacts spaced at opposite sides of the lever in line with the movable contacts, and a yieldable stop device disposed in advance of one of said fixed contacts for engagement with they lever to prevent engagement of the fixed and movable contacts incident to vibration of they lever toward said fixed contact.

. 3. A circuit'closer, comprising a' frame, a thermostat mounted on the frame and securedthereto at its lower end, a lever pivotally mounted on the frame above the thermostat, a set screw carried by the lever foradjustabiy engaging the thermostat to support the lever therefrom, a weight mounted for longitudinal adjustment on the lever to steady the same and vary the resistance of the lever to operation by the thermostat, upper andlower movable contacts carried by the lever, upper and lower fixed contacts mounted on the frame in spaced rela tion to the lever, and spring meansior engaging the .lever upon vibration thereof to prevent closing of the contacts except uponlthe steady raised or low-- 4. A circuit closer for use in signal circuits and the like, comprising a frame having an upright post at one end and an overhanging arm jatits opposite end, fixed contacts mount-edior adjustment uponsaid post and disposedjin vertically spaced apart relation thereonfa yielding "buffer carried by the post in advance of the upper contact thereof, alever pivotally mounted at one end upon said overhanging arm andextending horizontally'toward said post, movable contacts mounted upon the opposite sides of the leverat its, free end, 7 said lever, supporting "the v movable, contacts between said lfixed contacts and in position to alternately engage the same upon the rise and'iallof the lever and ther-' mostatic device mounted on the framebeneath .said lever, adjustable means between the lever and said thermostatic'device for determining the relative normal position of the free end of the lever with respect to the thermostatic device, and a weight adjustably mounted on the lever against the thermo- 

